ʻO ZnGeP2 — He ʻOpitika ʻino ʻole linear infrared
Hōʻike huahana
Ma muli o kēia mau waiwai kūikawā, ua ʻike ʻia ʻo ia kekahi o nā mea hoʻohiki maikaʻi loa no nā noi optical nonlinear. Hiki iā ZnGeP2 ke hana i ka laser tunable hoʻomau i ka 3-5 μm i hoʻokomo ʻia ma o ka ʻenehana optical parametric oscillation (OPO). ʻO nā lasers, e hana ana ma ka puka makani hoʻoili lewa o 3-5 μm he mea koʻikoʻi loa ia no nā noi he nui, e like me ke ana infrared counter ana, ka nānā ʻana i nā kemika, nā mea lapaʻau, a me ka ʻike mamao.
Hiki iā mākou ke hāʻawi i ka ZnGeP2 maikaʻi kiʻekiʻe me ka coefficient absorption haʻahaʻa haʻahaʻa α <0.05 cm-1 (ma nā lōʻihi hawewe 2.0-2.1 µm), hiki ke hoʻohana ʻia e hana i ka laser tunable mid-infrared me ka hana kiʻekiʻe ma o nā kaʻina OPO a i ʻole OPA.
ʻO kā mākou hiki
Ua hoʻokumu ʻia ʻo Dynamic Temperature Field Technology a hoʻohana ʻia e synthesize ZnGeP2 polycrystalline. Ma o kēia ʻenehana, ʻoi aku ma mua o 500g maʻemaʻe kiʻekiʻe ZnGeP2 polycrystalline me nā hua nui i synthesized i ka holo hoʻokahi.
Ua hoʻohana maikaʻi ʻia ke ʻano Horizontal Gradient Freeze i hui pū ʻia me Directional Necking Technology (hiki ke hoʻohaʻahaʻa pono i ka dislocation density) i ka ulu ʻana o ZnGeP2 kiʻekiʻe.
Ua hoʻoulu maikaʻi ʻia ka ZnGeP2 kiʻekiʻe kiʻekiʻe kilokika me ke anawaena nui loa o ka honua (Φ55 mm) e ke ʻano Vertical Gradient Freeze.
Ua loaʻa mai ka ʻeleʻele a me ka palahalaha o nā mea aniani, ma lalo o 5Å a me 1/8λ, e kā mākou ʻenehana lapaʻau maikaʻi.
ʻO ka hoʻokaʻawale ʻana o ka huina hope loa o nā mea aniani ma lalo o 0.1 degere ma muli o ka hoʻohana ʻana i ka orientation pololei a me nā ʻenehana ʻoki pololei.
Ua hoʻokō ʻia nā mea hana me ka hana maikaʻi loa ma muli o ke kiʻekiʻe kiʻekiʻe o nā kristal a me ka ʻenehana hoʻoheheʻe kiʻekiʻe kiʻekiʻe (ʻO ka 3-5μm mid-infrared tunable laser ua hana ʻia me ka hoʻololi ʻana i ʻoi aku ka nui ma mua o 56% i ka wā i puhi ʻia e kahi kukui 2μm. kumu).
ʻO kā mākou hui noiʻi, ma o ka ʻimi hoʻomau ʻana a me ka ʻenehana ʻenehana, ua lanakila maikaʻi i ka ʻenehana synthesis o ZnGeP2 polycrystalline maʻemaʻe kiʻekiʻe, ka ʻenehana ulu o ka nui nui a me ke kūlana kiʻekiʻe ZnGeP2 a me ka orientation kristal a me ka ʻenehana hana kiʻekiʻe; hiki iā ia ke hāʻawi i nā mea ZnGeP2 a me nā kristal i ulu mua ʻia i ka pālākiō nui me ke kūlike kiʻekiʻe, haʻahaʻa absorption coefficient, kūpaʻa maikaʻi, a me ka hoʻololi kiʻekiʻe. Ma ka manawa like, ua hoʻokumu mākou i kahi pūʻulu holoʻokoʻa o ka papa hana ho'āʻo hana kristal e hiki ai iā mākou ke hāʻawi i nā lawelawe hoʻokolohua hana kristal no nā mea kūʻai.
Nā noi
● lua, kolu, a me ka ha o ka harmonic hanauna o CO2-laser
● ʻO ka hoʻokumu ʻana o ka parametric optika me ka pahū ʻana ma ka lōʻihi nalu o 2.0 µm
● Ka lua harmonic hanauna o CO-laser
● Hoʻopuka ʻana i ka pāhawewe like ʻole i ka submillimeter mai 70.0 µm a i 1000 µm
● Ke hana nei ka hana ʻana o nā alapine i hui ʻia o CO2- a me CO-lasers radiation a me nā lasers ʻē aʻe ma ka ʻāpana ʻike aniani.
Na Waiwai Kumu
| Kemika | ZnGeP2 |
| ʻO ka hoʻohālike Crystal a me ka Papa | ketragonal, -42m |
| Nā ʻāpana Lattice | a = 5.467 Å c = 12.736 Å |
| ʻO ka mānoanoa | 4.162 g/cm3 |
| Mohs Paʻakikī | 5.5 |
| Papa Optical | Uniaxial maikaʻi |
| Laulā hoʻouna hoʻohana | 2.0 um - 10.0 um |
| ʻO ka hoʻoili wela @ T= 293 K | 35 W/m∙K (⊥c) 36 W/m∙K ( ∥ c) |
| Hoʻonui wela @ T = 293 K a hiki i 573 K | 17.5 x 106 K-1 (⊥c) 15.9 x 106 K-1 ( ∥ c) |
Nā ʻāpana ʻenehana
| Hoʻomanawanui anawaena | +0/-0.1 mm |
| Hoʻomanawanui lōʻihi | ±0.1 mm |
| Ka hoʻomanawanui ʻana | <30 arcmin |
| ʻAno ʻili | 20-10 SD |
| Palahalaha | <λ/4@632.8 nm |
| Hoʻolikelike | <30 arcsec |
| Perpendicularity | <5 arcmin |
| Chamfer | <0.1 mm x 45° |
| Laulā mālohi | 0.75 - 12.0 ?m |
| Nā Coefficient Linear | d36 = 68.9 pm/V (ma 10.6μm) d36 = 75.0 pm/V (ma 9.6 μm) |
| Paepae Poino | 60 MW/cm2 ,150ns@10.6μm |
